The Bomag 05559642 Angular Reduction is a genuine OEM component designed for Bomag BW 164 AD, BW 161 AC-2, BW 161 AD-2, BW 164 AC-2, BW 164 AD-2, BW 202 AD-2, and BW 202 AHD-2 tandem rollers. Sourced directly from Bomag, this part meets the exact specifications of the original component it replaces. This angular reduction installs directly into the drivetrain assembly of your tandem roller, restoring correct power transfer and directional output. If your machine is showing signs of drivetrain inefficiency or abnormal operation, replacing this component with the correct OEM part is the reliable path back to full performance.
Key Features
- Genuine OEM Construction — manufactured to Bomag's original gear geometry and material tolerances, ensuring the angular reduction delivers the correct torque transfer ratio for tandem roller drivetrains
- Direct OEM Replacement — engineered to match the original mounting interface and output angle, fitting the drivetrain assembly exactly as the factory component did
- Broad Tandem Roller Coverage — compatible with BW 164 AD, BW 161 AC-2, BW 161 AD-2, BW 164 AC-2, BW 164 AD-2, BW 202 AD-2, and BW 202 AHD-2 tandem rollers
- Restored Drivetrain Efficiency — a correctly functioning angular reduction maintains precise power direction through the drive system, supporting smooth, consistent drum operation on asphalt compaction passes
- Verified Part Number Fit — order with confidence using Bomag part number 05559642, confirmed against Bomag OEM catalog data for the models listed
An angular reduction is a gearbox component that redirects rotational force from one axis to another — typically changing the angle of power transmission within a drivetrain system. In a tandem roller, this component plays a critical role in routing drive force from the engine or hydraulic motor to the drum or wheel assembly at the correct output angle. When the angular reduction wears or fails, the machine may experience loss of drive, unusual vibration, or erratic drum behavior, all of which compromise compaction quality and can lead to more extensive drivetrain damage if left unaddressed.
Part Details
| Part Number | 05559642 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Angular Reduction |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Tandem Roller | BW 164 AD | 00810155 |
| Tandem Roller | BW 161 AC-2 | 00817492 |
| Tandem Roller | BW 161 AD-2 | 00817493, 00817494 |
| Tandem Roller | BW 164 AC-2 | 00817495 |
| Tandem Roller | BW 202 AD-2 | 00817516, 00817517 |
| Tandem Roller | BW 202 AHD-2 | 00817518 |
| Tandem Roller | BW 164 AD-2 | 00817640 |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.
